Silicon carbide substrate and method of manufacturing silicon carbide substrate

US9070567B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9070567-B2
Application numberUS-201013128438-A
CountryUS
Kind codeB2
Filing dateFeb 9, 2010
Priority dateFeb 18, 2009
Publication dateJun 30, 2015
Grant dateJun 30, 2015

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  5. First independent claim

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Abstract

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A SiC substrate includes a first orientation flat parallel to the <11-20> direction, and a second orientation flat being in a direction intersecting the first orientation flat and being different from the first orientation flat in length. An alternative SiC substrate has a rectangular plane shape, and a main surface of the substrate includes a first side parallel to the <11-20> direction, a second side in a direction perpendicular to the first side, and a third side connecting the first side to the second side. A length of the third side projected in a direction in which the first side extends is different from a length of the third side projected in a direction in which the second side extends.

First claim

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The invention claimed is: 1. A silicon carbide substrate comprising: a main surface having a circular or elliptical plane shape and being inclined at not less than 50° and not more than 65° in a <1-100> direction as well as at not less than −10° and not more than 10° in a <11-20> direction with respect to a {0001} plane; a first orientation flat parallel to the <11-20> direction; and a second orientation flat being in a direction intersecting said first orientation flat and be…

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What does patent US9070567B2 cover?
A SiC substrate includes a first orientation flat parallel to the <11-20> direction, and a second orientation flat being in a direction intersecting the first orientation flat and being different from the first orientation flat in length. An alternative SiC substrate has a rectangular plane shape, and a main surface of the substrate includes a first side parallel to the <11-20> direction, a sec…
Who is the assignee on this patent?
Sasaki Makoto, Masuda Takeyoshi, Sumitomo Electric Industries
What technology area does this patent fall under?
Primary CPC classification H10P95/00. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).